Structure 620A5200001 · Monroe County, TN

Nfa A149 347816u over Csx Railroad

Carries Nfa A149 347816u over Csx Railroad, SW Of Madisonville.

Overall conditionPoor

Set by its lowest-rated component: Deck at 3 of 9.

How ratings work
Decksets the rating3/9 · Serious
Superstructure6/9 · Satisfactory
Substructure6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT94 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 3/9 · sets the ratingSuperstructure 6/9Substructure 6/9

94 ft end to end. Lengths and the car on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a multi-beam bridge.

Built199927 years old
Length94.2 ft28.7 m
Daily traffic80counted 2020
Last inspectedJuly 2024every 24 months

Location

StateTennessee
CountyMonroe
LocationSW Of Madisonville
CarriesNfa A149 347816u
CrossesCsx Railroad
Coordinates35.48765, -84.41241

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length94.2 ft (28.7 m)
Max Span36.1 ft (11 m)
Deck Width18.0 ft (5.5 m)
Deck Area157.8 sq m
Main Spans1
Year Built1999

Traffic

Avg Daily Traffic80 (2020)
Truck Traffic2%
Lanes On Bridge1

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number620A5200001

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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